That is because you have meta tags in there that are preventing sites from spidering your Website. Go into the Tools menu and un-check the box "respect robots.txt and meta robots tag" and then re-run your sitemap.

Brett Donald wrote:On a similar note I have found the sitemap will not show child pages, is there a setting to show child pages?
Thanks,
Brett

It will find all pages that are linked in. Just make sure that any page that is not getting found, that it is linked in someway to a parent page. Also, remember that Sitemapper cannot find links that are in Flash, JavaScript, DIV's etc.